Chase Sets Flag in AmEx Territory

In its latest credit-card advertising campaign, J.P. Morgan Chase & Co. tells customers to "chase what matters." Taking its own advice, the big bank is chasing after customers of American Express Co.

Once a credit-card company that catered to middle-class families who vacationed at Disney World, J.P. Morgan's Chase credit-card unit is now pitching plastic to more affluent consumers who stay in luxury hotels and dine at...